ADM1031_REG_PWM
ADM1031_REG_PWM) >> (4 * chan)) & 0x0f;
adm1031_write_value(client, ADM1031_REG_PWM, 0x55);
adm1031_write_value(client, ADM1031_REG_PWM,
reg = adm1031_read_value(client, ADM1031_REG_PWM);
adm1031_write_value(client, ADM1031_REG_PWM,